Sharon Bittner, CRNP Sharon Bittner, CRNP, is a certified nurse practitioner with AHN Behavioral Health. She continues to impact positive social change for the pediatric population who need help in psychiatric mental health and provides compassionate care and treatment for adolescents. She did her Bachelor of Science in Nursing at Gannon University in Erie, PA and completed her Masters of Nursing at Walden University in Minneapolis, Minnesota. Sharon Bittner is certified as a Psychiatric Nurse Practitioner by the American Nurses Credentialing Center. She believes that medication management is just a small piece of the puzzle for a healthy quality of life. She sees patients ages 5 to 21.